package com.example.seckill.service;

import com.example.seckill.domain.PromoDO;
import com.baomidou.mybatisplus.extension.service.IService;
import com.example.seckill.service.model.PromoModel;

/**
 *
 */
public interface PromoService extends IService<PromoDO> {
    PromoModel findByItemId(Integer itemId);
}
